Western Airconditioning DBIS-24 User manual

Brand: Western Airconditioning

Model: DBIS-24

Category: Split-system air conditioners

Type: User manual

This manual is also suitable for

USER'S MANUAL

Duct Type Air Conditioner

MODEL

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For proper operation, please read and keep this manual carefully.

DBIS-09 DBIS-12

DBIS-18 DBIS-24

Content

Safety Precautions..........................................................................................1

Installation Location and Matters Needing Attention..............................5

How to select the installation location for the indoor unit..................................5

Electric wiring....................................................................................................5

Earthing Requirements......................................................................................6

Outline of the Unit and Main Parts.....................................................................6

Accessories for installation................................................................................7

Installation Instructions..................................................................................8

Outline Dimension Drawings of the Indoor Unit.................................................8

Dimension Requirements on the Installation Space of the Indoor Unit...............9

Installation of the Indoor Unit.............................................................................9

Installation of the Connection Pipe...................................................................11

Installation of the Drain Hose...........................................................................14

Installation of the Duct.....................................................................................16

Filter Installation..............................................................................................18

Electrical Wiring...............................................................................................19

Installation of the Wired Controller...................................................................21

Test Running...................................................................................................22

Trial Operation and Testing..............................................................................22

Rated Working Conditions...............................................................................23

Indoor unit address inquiry...............................................................................23

Error Analysis..................................................................................................24

Maintenance...................................................................................................25

This marking indicates that this product should not be disposed with other

household wastes throughout the EU. To prevent possible harm to the

environment or human health from uncontrolled waste disposal, recycle it

responsibly to promote the sustainable reuse of material resources. To return

your used device, please use the

return and collection systems or contact the

retailer where the product was purchased.

They can take this product for

environmental safe recycling.

Please read this manual carefully before using and operating

correctly as instructed in this manual .

WARNING! CAUTION!

Please especially take notice of the following two symbols:

It indicates improper operation which will

lead to human casualty or severe injury.

It indicates improper operation which will

lead to human casualty or severe injury.

Safety Precautions

USER NOTICE

This appliance can be used by children aged of 8 years and

above and persons with reduced physical, sensory or mental

capabilities or lack of experience and knowledge if they have

been given supervision or instruction concerning use of the

appliance in a safe way and understand the hazards involved.

Children shall not play with the appliance.

Cleaning and user maintenance shall not be made by children

without supervision.

The total capacity of the indoor units which runs at the

same time can not exceed 150% of that of the outdoor units,

otherwise, the cooling (heating) effect of each indoor unit would

be poor.

Switch the main power on 8 hours before starting the unit,

helpful for a successful startup.

It is a normal phenomenon that the indoor unit fan will still run

for 20~70 seconds after the indoor unit receives the “stop”

signal so as to make full use of after-heat for the next operation.

Safety Precautions

When the running modes of the indoor and outdoor units

conict, it will be indicated on the display of the wired controller

in ve seconds and then the indooor unit will stop. In this

case, they can back to the normal condition by harmonizing

their running modes: the cooling mode is compatible with the

dehumidifying mode and the fan mode can go with any other

mode except the heating mode. If the supply power fails when

the unit is running, then the indoor unit will send the “start”

signal to the outdoor unit three minutes later after power

recovery.

During installation, the communication cable and the power

cord must not be twisted together but instead separated with

an interval of at least 2cm, otherwise the unit is likely to run

abnormally.

This appliance is not intended for use by persons(including

children) with reduced physical,sensory or mental capabilities,

or lack of experience and knowledge, unless they have

been given supervision or instruction concerning use of the

appliance by a person responsible for their safety. Children

should be supervised to ensure that they do not paly with the

appliance.

The appliance shall be installed in accordance with national

wiring regulations.

If the supply cord is damaged, it must be replaced by the

manufacturer, its service agent or similarly qualied persons in

order to avoid a hazard.

Safety Precautions

WARNING!

The installation should be committed to the appointed service

center, otherwise it will cause water leakage, electric shock or

re etc..

Please install the unit in a place where is strong enough to

withstand the weight of the unit, otherwise, the unit would fall

down and cause injury or death.

The drain pipe should be installed as instructed in the manual

to guarantee the proper drainage, meanwhile it should be

insulated to prevent condensing.

Otherwise the improper installation would cause water leakage

and then wet the household wares in the room.

Do not use or place any inammable, combustible or any

noxious substance next to the unit.

Under the occurrence of an error (like burning smell etc.),

please cut off the main power supply of the unit.

Keep good ventilation in the room to avoid oxygen decit.

Never insert your nger or any other object into the air outlet/

inlet grille.

Please take notice of the supporting frame of the unit to see if it

is damaged over the long time period of use.

Never ret the unit and contact the sales agent or the

professional installation personnel for the repair or relocation

of the unit.

Non-professional personnel are prohibited to dismantle of the

electric box owing to the high voltage of the outdoor unit.

An all-pole disconnection switch having a contact separation of

at least 3mm in all poles should be connected in xed wiring.

Safety Precautions

CAUTION!

Before installation, please check if the power supply

corresponds with the requirement specied on the nameplate

and also check its security.

Before using the unit, please check if the piping and wiring

are correct to avoid water leakage, refrigerant leakage, electric

shock, or re etc.

The main power supply must be earthed to avoid the hazard of

electric shock and never connect this earth wire to the gas pipe

running water pipe, lightening rod or phone cable’s earth lead.

Turn off the unit after it runs at least ve minutes, otherwise its

service life will be shortened.

Do not allow children operate this unit.

Do not operate this unit wet hands.

Cut off the main power supply prior to the cleaning of the unit

or the replacement of the air lter.

When the unit is not to be used for a long time, please cut off

the main power supply of the unit.

Do not expose the unit to the moist or corrosive circumstances.

After the electric installation, please take an electric leakage

test.

Installation Location and

Matters Needing Attention

The installation of the unit must comply with the national and local safety regulations. The

installation quality directly affects the normal use, so the user should not carry out the

installation personally, instead, the installation and debugging should be done by technician

according to this manual. Only after that, can the unit be energized.

1. Where there is no direct sunlight.

2. Where the top hanger, ceiling and the building structure are strong enough to withstand

the weight of the unit.

3. Where the drain pipe can be easily connected to outside.

4. Where the ow of the air inlet/outlet is not blocked.

5. Where the refrigerant pipe of the indoor unit can be easily led to outside.

6. Where there is no inammable、explosive substances or their leakage.

7. Where there is no corrosive gas、heavy dust、salt mist、smog or moisture.

1. The installation must be done in accordance with the national wiring regulations.

2. Only the power cord with the rated voltage and exclusive circuit for the air conditioning

can be used.

3. Do not pull power cord by force.

4. The electric installation should be carried out by the professional personnel as instructed

by the local laws, regulations and also this manual.

5. The diameter of the power cord should be large enough and once it is damaged It must be

replaced by dedicated one.

6. The earthing should be reliable and the earth wire should be connected to the dedicated

device of the building by the professional personnel. Besides, the air switch coupled with

the leakage current protection switch must be equipped, which is of enough capacity and

of both magnetic and thermal tripping functions in case of the short circuit and overload.

The unit installed in the following places is likely to run abnormally .if unavoidable, please

contact the professional personnel at the SKYWORTH appointed service center.

● Where is full of oil.

● Alkaline soil off the sea.

● Where there is sulfur gas (like sulfur hot spring).

● Where there are devices with high frequency (like wireless devices, electric welding

devices, or medical equipment).

● Special circumstances.

CAUTION!

How to select the installation location for the indoor unit

Electric wiring

Installation Location and

Matters Needing Attention

● Indoor

● Wired Controller

1. The air conditioner is classied into the class l appliances, so its earthing must be reliable.

2. The yellow-green line of the air conditioner is the earth line and can not be used for other

purpose, cut off or xed by the tapping screw, otherwise it would cause the hazard of the

electric shock.

3. The reliable earth terminal should be provided and the earth wire cannot be connected to

any of the following places.

(1) Running water pipe

(2) Coal gas pipe

(3) sewage pipe

(4) other places where the professional personnel think unreliable

Earthing Requirements

Outline of the Unit and Main Parts

Drain pipe

Connect pipe

●

Air outlet

NOTE:

● The connection pipe and duct for this

unit should be prepared by the user.

● The unit is standard equipped with

rectangular duct.

Installation Location and

Matters Needing Attention

The standard accessory parts listed below are furnished and should be used as required.

Accessories for installation

Table 1

Indoor

Unit

Name Appearance Q’ty Usage

Wired

Controller 1 To control the indoor uint

Screw 2 To install the wired controller

Insulation 2 To insulate the drain pipe

Insulation 2 To insulate the gas and liquid

pipe

Corrugated

pipe 2 Only for 24 unit

Nut 1 or 2 Only one for 24 unit

Nut 4 To install the indoor unit

Drain pipe 1

Fastener 6 To fasten the sponge

Others Instructions、bar code

Installation Instructions

Note: the unit in the followings is mm, unless otherwise specied.

Outline Dimension Drawings of the Indoor Unit

ABCDEFG

740 350 700 200 450 472 26

1040 350 1000 200 450 472 26

1340 350 1300 200 450 472 26

Item

Model

Table 2 : Outline Dimensions

Fig.2

DBIS-09

DBIS-12

DBIS-18

DBIS-24

Installation Instructions

Dimension Requirements on the Installation Space of the Indoor Unit

Installation of the Indoor Unit

a. Requirements on the Installation Location

b. Installation of the indoor unit

1. Ensure the hanger is strong enough to withstand the weight of the unit.

2. The drainage of the drain pipe is easy.

3. No obstacle is in the inlet/outlet and the air circulation in good condition.

4. Ensure the installation space shown in Fig.3 is left for the access to maintenance.

5. It should be far away from where there is heat source, leakage of inammable, explosive

substances, or smog.

6. It is the ceiling type unit(concealed in the ceiling)

7. The power cords and connection lines of the indoor and outdoor units must be at least 1m

away from the TV set or radio to avoid the image interference and noise (even if 1m is

kept, the noise may be produce due to the strong electric wave)

1. Drilling Holes for Bolts and Installing the Bolts

Using the installation template, drill holes for bolts (four holes). (Fig.4)

Fig.3

Fig.4

Drilling position for bolts

Installation Instructions

2. Installing the Suspension Bolts

(1) Install the bolts to the ceiling at a place strong enough to hang the unit. Mark the bolt

positions from the installation template. With a concrete drill, drill for 12.7mm (1/2”)

diameter holes. (Fig. 5)

(2) Insert the anchor bolts into the drilled holes, and drive the pins completely into the

anchorbolts with a hammer. (Fig. 6)

(3) Install the hanger to the unit.

(4) Pass the unit hangers over the bolts installed to the ceiling and install the unit with the

special nut. (Fig.7)

3. Horizontal Check of the Indoor Unit

After the installation of the indoor unit, its horizontal must be checked to make sure the

unit keep horizontal fore and aft and keep an inclination of 1° toward the drain pipe right

and left, as show in Fig.8.

Nut with washer

Flat shim

Nut

Spring

shim

Fig.5 Fig.6

Fig.7

60-70mm

Fig.8 Horizontal tester

Installation Instructions

Fig.9

● Prior to the installation, please make a good preparation for all piping (refrigerant pipe,

drain pipe) and wring (wires of the wired controller, wires between the indoor and outdoor

unit) of the indoor unit to make the further installation much easy.

● If there is an opening in the ceiling, it is better to reinforce it to keep it at and prevent it

vibrating. Consult the user and builder for more details.

● If the strength of the ceiling is not strong enough, abeam made of angle iron can be used

and then x the unit on it.

● If the indoor unit is not installed in the air conditioning area, please use sponge around the

unit to prevent condensing. The thickness of the sponge depends on the actual installation

environment.

1. Cut the connection pipe with the pipe cutter and remove the burrs.

2. Hold the pipe downward to prevent cuttings from entering the pipe.

3. Remove the are nuts at the stop valve of the outdoor unit and inside the accessory bag

of the indoor unit, then insert them to the connection pipe, after that, are the connection

pipe with a aring tool.

4. Check if the are part is spread evenly and there are no cracks (see Fig.9).

1. The pipes are shaped by your hands. Be careful not to collapse them.

CAUTION!

Installation of the Connection Pipe

a. Flare Processing

b. Bending Pipes

Fig.10

ĸh

Extend the pipe by unwinding it

Installation Instructions

2. Do not bend the pipes in an angle more than 90°.

3. When pipes are repeatedly bent or stretched, the material

will harden, making it difcult to bend or stretch them any

more. Do not bend or stretch the pipes more than three

times.

4. When bending the pipe, do not bend it as is. The pipe

will be collapsed. In this case, cut the heat insulating

pipe with a sharp cutter as shown in Fig.14, and bend

it after exposing the pipe. After bending the pipe as

you want, be sure to put the heat insulating pipe back

on the pipe, and secure it with tape.

Detach the caps and plugs from the pipes.

Centering the pipe against port on the indoor unit, turn the are nut with your hand.

Fig.11

Pipe

Cutter

Cutt line

Heat insulating pipe

● To prevent breaking of the pipe, avoid sharp bends. Bend the pipe with a radius of

curvature of 150 mm or over.

● If the pipe is bent repeatedly at the same place, it will break.

● Be sure to apply the pipe against the port on the indoor unit correctly. If the centering is

improper, the are nut cannot be tightened smoothly. If the are nut is forced to turn, the

threads will be damaged.

● Do not remove the are nut until the connection pipe is to be connected so as to prevent

dust and impurities from coming into the pipe system.

Hold the torque wrench at its grip, keeping it in the right angle with the pipe as shown in Fig. 12,

in order to tighten the are nut correctly.

CAUTION!

c. Connecting the Pipe at the Indoor Unit Side

Holding spanner

Torque wrench

Fig.12

Installation Instructions

Be sure to connect the gas pipe after connecting the liquid pipe completely.

For both indoor and outdoor unit side, check the joints for gas leaking by the use of a gas

leakage detector without fail when the pipes are connected.

Stick coupler heat insulation (large and small) to the place where connecting pipes.

CAUTION!

d. Checking the Pipe Connections for Gas Leaking

e. Heat Insulation on the Pipe Joints

Fig.13

Fig.14

Table 3 Flare nut tightening torque

Pipe Diameter (Inch) 1/4˝ 3/8˝ 1/2˝ 5/8˝ 3/4˝ 7/8˝

Tightening Torque (N·m) 15-30 35-40 45-50 60-65 70-75 80-85

Torque wrenc

Flare nut

Copper piping

Oil applied (improves seal air-tightness)

Oil applied (to reduce friction with the flare nut)

Spanner

Piping union Flare nut

Installation Instructions

Installation of the Drain Hose

a. Installation of Drain Piping

Install the drain hose in accordance with the instructions in this installation manual and keep the

area warm enough to prevent condensation. Problems with the piping may lead to water leaks.

1. Install the drain hose with downward gradient (1/50 to 1/100) and no risers or traps are used

for the hose.(Fig.15)

2. Be sure there is no crack or leak on the drain hose to avoid the formation of air pocket. (Fig.15)

3. When the hose is long, install supporters.(Fig.16)

4. Always use the drain hose which has been insulated properly.

5. Use a suitable drain hose, and see Table 3 for its size.

6. There is a drain port on both the left and right sides. Select the drain port to match the local

conditions.(Fig.17)

7. When the unit is shipped from the factory, the drain port is defaulted to be the one on the left

side (electric box side), the port on right side has been plugged.

CAUTION!

Fig.15

Fig.16 Fig.17

Installation Instructions

Always check that the drain cap is installed to the unused drain

port and is fastened with the nylon fastener. If the drain cap is

not installed, or is not sufciently fastened by the nylon fastener,

water may drip during the cooling operation.

8. When using the drain port on the right side of the unit,

reinstall the drain cap to the left side drain port.(Fig.19)

9. Be sure to insulate where the drain port and the drain hose is connected.(Fig.20 )

10. The unused drain port also should be insulated properly.(Fig.21)

11. There is adhesive on one side of the insulation so that after removing the protective paper

over it the insulation can be directly attached to the drain hose.

CAUTION!

Fig.18

Condensate Drain pipe

Enlarged View

Condensate Drain pipe

As the inside of the unit is in the negative pressure status, it is required to set

up a backwater elbow. The requirements is: A=B ≥ P/10+20(mm)

P is the absolute pressure inside the unit. The unit of the pressure is Pa.

Fig.19

Drain port

Drain cap

Fastener

Fig.20 Fig.21

b. Testing of Drain Piping

After piping work is nished, check if drainage ows

smoothly.

As shown in the gure, add approximately 1 liter of

water slowly into the drain pan and check drainage

ow during COOL running. Fig.22

Installation Instructions

Installation of the Duct

a. Dimensions of the Supply Air Outlet/Return Air Inlet

b. Installation of the Air Supply Duct

Fig.23

Air Supply Outlet Return Air Inlet

A B C D

538 122 590 170

808 122 890 170

1108 122 1190 170

Item

Model

Table 4 Units: mm

1. Installation of the rectangular air supply duct

Fig.23

Table 5

No. Name No. Name

1 Hanger 5 Filter

2Air Intake

Pipe 6Main Air

Supply Pipe

3Canvas Air

Pipe 7Air Supply

Outlet

4 Air Intake

●

The maximum length of the duct means the maximum length of the supply air duct plus the

maximum length of the return air duct.

●

The duct is rectangular and connected with the air inlet/outlet of the indoor unit. Among all

supply air outlets, at least one should be kept open.

CAUTION!

DBIS-09

DBIS-12

DBIS-18

DBIS-24

Installation Instructions

2. The default installation location of the rectangular ange is at the back and the return air

cover plate is at the bottom, as shown in Fig.25

3. If the bottom return air is desired, just change the place of the rectangular ange and the

return air cover plate.

4. Connect one end of the return air duct to the return air outlet of the unit by rivets and the

other to the return air louver. For the sake of the convenience to freely adjust the height, a

cutting of canvas duct will be helpful, which can be reinforced and folded by 8# iron wire.

5. More noise is likely to be produced in the bottom return air mode than the backward return

air mode, so it is suggested to install a silencer and a static pressure box to minimize the

noise.

6. The installation method can be chosen with considering the conditions of the building and

maintenance etc., as shown in Fig.26.

Rectangular Flange

Rear Return Air

Bottom Return Air

Return Air Cover Plate

Fig.25

Fig.26

Supply air

Return air

No. 1 2 3 4 5 6

Name Return Air Inlet

(with lter)

Canvas

Duct

Return Air

Duct Indoor unit Supply Air

Duct Grille

Table 6 Installation of the return air duct

Install the return air duct (a) Install the return air duct (b)

Installation Instructions

Filter Installation

a. Install the air inlet frame

Fasten the air inlet frame on the unit by the screw.

b. Install the lter.

Push the lter into the air inlet frames through the right or left side

Or, carry the lter from down to upper and then push the lter into the air inlet frames.

screw

Air inlet frames

Air inlet

frames

Air inlet frameslter

lter

Air inlet frames

Fig.27

Fig.28

Fig.29

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Western Airconditioning DBIS-24 User manual

Brand: Western Airconditioning

Model: DBIS-24

Category: Split-system air conditioners

Type: User manual

This manual is also suitable for

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Western Airconditioning DBIS-24 User manual

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Western Airconditioning DBIS-24 User manual

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